diff --git a/sc2/src/uqm/planets/planets.h b/sc2/src/uqm/planets/planets.h
index 60e8160bb..462039fda 100644
--- a/sc2/src/uqm/planets/planets.h
+++ b/sc2/src/uqm/planets/planets.h
@@ -74,7 +74,16 @@ enum
 
 #define MAX_SUNS 1
 #define MAX_PLANETS 16
-#define MAX_MOONS 5
+
+// FIXME: (:ADAM) The moon count controls a lot more than just the maximum moons.
+// Changing this will redo where planets lie in orbits (angles), totally changing
+// the generated universe.  I may have to split the generator functions into
+// "old and new", if I'm to preserve the goal of the original game being just
+// a plugin into the generic engine I'm pulling out of this.
+//
+// The goal is that no bits of the original game should be different, once
+// entirely "plugin-ified".
+#define MAX_MOONS 4
 
 #define MAP_BORDER_HEIGHT  5
 #define SCAN_SCREEN_HEIGHT (SIS_SCREEN_HEIGHT - MAP_HEIGHT - MAP_BORDER_HEIGHT)